Answers LA-Chemistry AMolar Masses

Molar Masses Answers

0 verified answers1 views

Free Preview

What is the molar mass of CHCl3?

48.47 g/mol

83.92 g/mol

119.37 g/mol

121.39 g/mol

Free Preview

Which is the molar mass of H2O?

10.02 g/mol

16.00 g/mol

17.01 g/mol

18.02 g/mol

In a classroom, which comparison would a teacher most likely use for describing a mole?

a cup of water and a liter of oil

a dozen eggs and a dozen jellybeans

a jar of jellybeans and a gram of salt crystals

20 marbles in a bag and 10 large ice cubes

Which is the formula mass of (NH4)2SO4?

96.07 amu

114.12 amu

116.17 amu

132.17 amu

How does the number of molecules in 1 mol of oxygen compare with the number of molecules in 1 mol of nitrogen?

1 mol of oxygen has fewer molecules.

1 mol of oxygen has more molecules.

Each sample has the same number of molecules.

The molecules cannot be compared without knowing the mass.

Which is the molar mass of BF3?

10.81 g/mol

29.81 g/mol

48.81 g/mol

67.81 g/mol

What is the molar mass of Al2(SO4)3?

150.03 g/mol

278.03 g/mol

342.17 g/mol

450.09 g/mol

What is the molar mass of a substance?

the mass in grams of one mole of a substance

the number of particles in one gram of a substance

the number of moles in one gram of a substance

the mass in grams of one particle of a substance

How are a mole and a dozen similar?

Each represents a certain mass of material.

Each names a given number of objects.

Each identifies a specific volume.

Each measures a given number of amus.

What is Avogadro’s number?

the number of atoms in exactly 14.00 g of carbon-12

the number of atoms in a kilogram of any substance

the number of atoms, molecules, ions, formula units, or other particles in a mole of a substance

the number of atoms, molecules, ions, formula units, or other particles in a gram of a substance

Did you find these answers helpful?

Molar Masses Answers

More from this Course

TRY EDGENUITY HACKS